H81M0FYA

Series:	Holco, Holsworthy
Packaging:	Bulk
Part Status:	Active
Resistance:	1 MOhms
Tolerance:	±1%
Power (Watts):	0.25W, 1/4W
Composition:	Metal Film
Features:	Pulse Withstanding
Temperature Coefficient:	±15ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.098" Dia x 0.283" L (2.50mm x 7.20mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors and H81M0FYA

Through-hole resistors are one of the most fundamental components of an electrical circuit, making them necessary for many applications, particularly in places where vibration and airborne dust are common. While through-hole resistors are more labor-intensive and more expensive than surface mount resistors, their larger form factor also makes them a much better choice in applications where vibration, dust, and moisture could short out or degrade the resistor quickly. One example of an excellent through-hole resistor that has been designed for many different applications is the H81M0FYA. This device is a three-terminal, metal-oxide thin-film resistor that is through-hole mounted. Manufactured by Amphenol, the H81M0FYA has been designed to withstand very harsh environmental conditions, making it perfect for those applications that need to rely on reliability.

Application Field of H81M0FYA

The H81M0FYA is most often used in harsh industrial environment applications. It is suitable for applications where relatively high stability and low drift are required. In addition, due to its unique design, it is also used in a wide range of automotive, commercial, and aerospace applications.The H81M0FYA is particularly well suited for applications that require one of the two types of through-hole resistors, either film or wire-wound. It is also designed to minimize contact corrosion in hostile environments, while still providing excellent performance over a broad temperature range. It is especially useful in applications that involve vibration or high humidity, as the H81M0FYA can handle both of these conditions with ease.

Working Principle of H81M0FYA

The H81M0FYA is able to provide exceptional reliability and stability due to its design. It is a three-terminal, metal-oxide thin-film resistor that has been specifically designed for use in harsh environments.The design of the resistor consists of a copper-clad ceramic substrate that contains two buried layers of thick-film resistors. These layers are connected by thick-film resistor deposition and thick-film adhesive layers that ensure both electrical and mechanical stability. The bottom layer is then covered with a protective, dielectric, and solderable coating, which is then protected by plated sleeves for added environmental protection.Once the resistor has been manufactured, its performance is governed by two main factors: the resistance value and the tolerance. The resistance value is dependent on the geometry of the substrate, as well as the thermal properties of the materials used in its construction, while the tolerance is dependent on the thickness of the resistive material.The H81M0FYA has been designed to work over a broad temperature range, from -55 to +150°C. Thanks to its thick-film construction, the resistor also has excellent vibration stability and excellent pulse handling. Additionally, its long-term resistive stability is superior to that of other types of resistors.Overall, the H81M0FYA is an excellent choice for applications requiring through-hole resistors that can also handle vibration, dust, and moisture. Its unique design helps to ensure its resistance values remain stable and consistent, while its thick-film construction and protective coating makes it ideal for use in harsh environments.

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